ASTROSAT CZTI

Data Quality Report

Orbit 40212

Creation date: 2024-06-27T22:13:38.873601
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C07_001T01_9000005532_40212cztM0_level2.fits modeM0/AS1C07_001T01_9000005532_40212cztM0_level2_quad_clean.evt
Size (bytes)319,343,04091,054,080
Size304.5 MB 86.8 MB
Events in quadrant A2,898,028612,913
Events in quadrant B2,687,571630,505
Events in quadrant C2,636,782602,393
Events in quadrant D3,191,336545,004

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0119743
B0115432
C0110472
D0132862

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0190
C0190
D0200

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01080
B01080
C01080
D01080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5227190.363497%
B5227440.841783%
C5227160.306103%
D52271573.003635%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7111 5228 10 10 0.14% 0.19%
B 7111 5228 28 28 0.39% 0.54%
C 7111 5228 10 10 0.14% 0.19%
D 7111 5228 125 125 1.76% 2.39%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 492698 4146.55 585 573 118.7
A 13 248 115512 968.45 585 573 118.7
A 2 79 8133 63.7 585 573 118.7
B 5 255 150919 1341.27 586 570 112.1
B 0 245 108442 962.33 586 570 112.1
B 15 85 43257 380.81 586 570 112.1
C 15 214 223971 1684.99 579 584 132.6
C 9 187 79593 595.96 579 584 132.6
C 0 10 56551 422.16 579 584 132.6
D 12 227 298481 2140.52 570 554 139.2
D 13 249 244758 1754.53 570 554 139.2
D 12 218 239164 1714.34 570 554 139.2

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter